1206DC105MAT2A Equivalent & Substitute Parts

Part Overview

The 1206DC105MAT2A is a 1 µF ceramic capacitor manufactured by KYOCERA AVX, rated for 35V with X7R temperature coefficient in 1206 (3216 Metric) surface mount package. This part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent capacitance and package specifications are maintained while voltage ratings or tolerance specifications may be upgraded to meet higher performance requirements or improve availability.

Substiute Parts

1206DC105MAT2A

KYOCERA AVXIn Stock: 9361206DC105MAT2A Datasheet

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KGM31HR71H105MU

KYOCERA AVXIn Stock: 18051KGM31HR71H105MU Datasheet

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KGM31HR72A105JU

KYOCERA AVXIn Stock: 4691KGM31HR72A105JU Datasheet

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C1206C105K5RAC7800

KEMETIn Stock: 357716C1206C105K5RAC7800 Datasheet

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C1206C105M5RAC7800

KEMETIn Stock: 110810C1206C105M5RAC7800 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1206DC105MAT2A is determined by the following criteria:

Primary Matching Parameters (Required):

• Capacitance: 1 µF (exact match)
• Package / Case: 1206 (3216 Metric) (exact match)
• Temperature Coefficient: X7R (exact match)
• Mounting Type: Surface Mount, MLCC (exact match)
• Operating Temperature Range: -55°C ~ 125°C (exact match)

Secondary Parameters (Allowable Variation):

• Voltage Rating: Equal to or greater than 35V
• Tolerance: ±20% or tighter (±10%, ±5%)

All identified substitute parts maintain identical capacitance, package, temperature coefficient, and mounting specifications. Voltage ratings are equal to or exceed the original 35V specification, providing enhanced voltage margin. Tolerance specifications are either maintained at ±20% or improved to ±10% or ±5%.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are Active status components with ROHS3 compliance and MSL 1 rating, matching the original part's compliance profile.

KGM31HR71H105MU (KYOCERA AVX): Maintains manufacturer continuity with 50V voltage rating and ±20% tolerance. Identical electrical and thermal characteristics to the main part with enhanced voltage margin.

KGM31HR72A105JU (KYOCERA AVX): Provides highest voltage rating at 100V with improved ±5% tolerance. Suitable for applications requiring tighter capacitance tolerance and maximum voltage headroom.

C1206C105K5RAC7800 (KEMET): Cross-manufacturer substitute with 50V rating and ±10% tolerance. Offers improved tolerance specification with significantly higher inventory availability.

C1206C105M5RAC7800 (KEMET): Cross-manufacturer substitute with 50V rating and ±20% tolerance matching the original. Maintains identical tolerance with enhanced voltage rating and high inventory availability.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher voltage rating? A: Yes. A higher voltage rating is a direct upgrade that maintains circuit compatibility. The 1206DC105MAT2A operates at 35V; substitutes rated at 50V or 100V provide additional voltage margin without affecting capacitance or thermal performance.

Q: What is the significance of tolerance differences (±20%, ±10%, ±5%)? A: Tolerance specifies the allowable deviation from the nominal 1 µF capacitance value. ±20% allows 0.8–1.2 µF; ±10% allows 0.9–1.1 µF; ±5% allows 0.95–1.05 µF. Tighter tolerance (±5% or ±10%) is suitable for precision applications; ±20% is acceptable for general-purpose filtering and decoupling.

Q: Are KYOCERA AVX and KEMET parts interchangeable? A: Yes, when electrical and mechanical parameters match. Both manufacturers produce ROHS3-compliant 1206 X7R ceramic capacitors with identical package dimensions, operating temperature range, and moisture sensitivity ratings. Cross-manufacturer substitution is valid based on matching specifications.

Q: Does package thickness affect substitution? A: The 1206 (3216 Metric) package is standardized. Thickness variations (0.037" to 0.075") are within normal manufacturing tolerances for this package class and do not affect PCB assembly compatibility or electrical performance.

Q: What applications are these parts suitable for? A: The 1206DC105MAT2A is rated for general-purpose applications. Substitute parts from KEMET (C1206C105K5RAC7800, C1206C105M5RAC7800) are specified for bypass and decoupling applications. All parts are suitable for filtering, decoupling, and general-purpose energy storage in the specified voltage and temperature ranges.